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Amit Daniel Kachhap02361412012-08-16 17:11:40 +05301/*
2 * linux/include/linux/cpu_cooling.h
3 *
4 * Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
5 * Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
6 *
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 *
21 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22 */
23
24#ifndef __CPU_COOLING_H__
25#define __CPU_COOLING_H__
26
27#include <linux/thermal.h>
Eduardo Valentin198f38f2013-04-24 23:10:28 +080028#include <linux/cpumask.h>
Amit Daniel Kachhap02361412012-08-16 17:11:40 +053029
Zhang Ruibbf7fc82013-03-26 23:57:01 +080030#ifdef CONFIG_CPU_THERMAL
Amit Daniel Kachhap02361412012-08-16 17:11:40 +053031/**
32 * cpufreq_cooling_register - function to create cpufreq cooling device.
33 * @clip_cpus: cpumask of cpus where the frequency constraints will happen
34 */
Eduardo Valentind44ada52013-04-17 17:12:23 +000035struct thermal_cooling_device *
36cpufreq_cooling_register(const struct cpumask *clip_cpus);
Amit Daniel Kachhap02361412012-08-16 17:11:40 +053037
38/**
39 * cpufreq_cooling_unregister - function to remove cpufreq cooling device.
40 * @cdev: thermal cooling device pointer.
41 */
42void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
Zhang Rui57df8102013-02-08 14:52:06 +080043
44unsigned long cpufreq_cooling_get_level(unsigned int, unsigned int);
Amit Daniel Kachhap02361412012-08-16 17:11:40 +053045#else /* !CONFIG_CPU_THERMAL */
Eduardo Valentind44ada52013-04-17 17:12:23 +000046static inline struct thermal_cooling_device *
47cpufreq_cooling_register(const struct cpumask *clip_cpus)
Amit Daniel Kachhap02361412012-08-16 17:11:40 +053048{
49 return NULL;
50}
Eduardo Valentind44ada52013-04-17 17:12:23 +000051static inline
52void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
Amit Daniel Kachhap02361412012-08-16 17:11:40 +053053{
54 return;
55}
Eduardo Valentind44ada52013-04-17 17:12:23 +000056static inline
57unsigned long cpufreq_cooling_get_level(unsigned int, unsigned int)
Zhang Rui57df8102013-02-08 14:52:06 +080058{
59 return THERMAL_CSTATE_INVALID;
60}
Amit Daniel Kachhap02361412012-08-16 17:11:40 +053061#endif /* CONFIG_CPU_THERMAL */
62
63#endif /* __CPU_COOLING_H__ */